Exhaust-horn.



G. PISCOPO.

EXHAUST HORN.

APPLICATION FILED szPT.11, 1911.

Patented Dec. 30, 1913.

W l o WM MAQ GUY PIScoPo, or wINrHnor, MASSACHUSETTS.

EXHAUST-HORN.

Specification of Letters Patent.

Patented Dec. 30,1913.

Applicationled September 11, 1911. Serial No. 648,818.

To all whom it may concern.' N A .y

BeV it known that I, GUY Prsccro, a citi- Zen of the United States, residing at W'inthrop, county of Suffolk, Commonwealth of Massachusetts, have invented certain new and useful Improvements in Exhaust-Horns, of which the following isa specification.`

This invention relates to whistles, horns or other Sound producing media and particularly to such a device adapted to be applied to the exhaust of an internal combustion engine.

The form of this device best known has been designated as the exhaust horn and I shall therefore treat my present invention in those terms.

In the use of exhaust horns, they are applied to the exhaust pipe leading` from the muffler. The discharge from the muiiier of an internal combustion engine contains a considerable amount of oil and carbon which forms a heavy discharge upon anything with which it comes in contact. It, therefore, has been a matter of considerable difliculty to provide a horn which would not be rendered ineffective by this discharge. To this end, therefore, the producing of a horn capable of continued use without the necessity of constant cleaning and to provide a structure which should be simple and satis` factory and capable of production at a low cost, I have devised my present invention.

As illustrative of my invention, I have shown in the accompanying drawing, a form of device which I have found well adapted to manufacture and use.

Throughout specification and drawings like reference numerals are employed to indicate corresponding parts and in the drawings:

Figure l is a view of my horn as seen from its lower side in its closed position. Fig'. 2 is a side view of the same partly broken away. Fig. 3 is a top view of a portion of the horn and clamping bracket. Fig. l is an end view of the horn from the clamping end, and Fig. 5 is a corresponding view with the horn swung out of alinement and in normal position.

I provide a clamp for the exhaust pipe consisting of four segments 1 which have iianges 2 adapted tobe screwed to each other. This forms an adjustable clamp for holding a variety of sizes of exhaust pipes. Upon one of the clamp members 1 is formed a pair of ears t in which is journaled a rod 5 upon the end of which is sccketed a projection 6 formed on the head 7. A spring 10 is coiled about the rod 5 being fastened at one end to one of the ears 4 and on the other end to the rod. The spring is so set that it tends to hold the head member out of alinement with the clamp 1 and therefore out of alinement with the exhaust pipe of the engine. Upon another of the members of the clamp 1 is formed an arm 11 having a perforation on its outer end. On the head 7 is a corresponding arm 12 having a. similar opening. The arm 12 is bent over so that its end may come in Contact with the arm 11 as is shown in Figs. 1 and 2. A cable 13 is threaded through the opening of the arm 11 and fastened in the opening of the arm 12. This cable 13 is employed to draw the head 7 into alinement with the clamp 1 and therefore into alinement with the exhaust when it is desired to signal on the horn. A pull cord 13 draws the arm 12 against the arm 11 which acts as a stop as above explained. The head 7 has a tapered passage terminating in a narrow slot S which is in a line with the edges of the whistle tubes 9. These tubes 9 are held by screws 14 to the extension head 7.

IWhen my horn is applied to the exhaust pipe of an engine, the tubes carried by the head 7 are normally thrown out of alinement with the exhaust by the spring 10. In this position they are disposed as shown in Fig. 5. l,Vlien it is desired to signal, the cable 13 is pulled by any suitable device, as by a hand lever or foot pedal. This swings the head 7 on the pivot rod 5 until the arm 12 is brought in contact with the arm 11. In this position the alinement is completed and the exhaust will signal upon the whistle tubes with the desired signaling tone.

Various modifications may obviously be made in the construction of my device, all without departing from the spirit of my invlention if within the limits of the appended c aim.

That I therefore claim and desire to sen ing a similar hole and bent at its free end so as to Contact with said first named arm, a draw connection threaded through the hole of the first named arm and fastened in the hole of the second named arm, a depending flange offset from said frame at an angle thereto and Whistle tubes fastened to said flange, said frame having a restricted pasture n presence of tWo Witnesses.

GUY PISCOPO.

Witnesses: Y VICTORIA LOWDEN, R. B. ELLMF;c

Copies of this patent may be obtained for five cents each, hy addressing the Commissioner of Patents,

Washington, D. G. 

